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All results from a given calculation for CFBr3 (fluorotribromomethane)

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-7821.430283
Energy at 298.15K-7821.439079
HF Energy-7821.430283
Nuclear repulsion energy968.009538
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HSEh1PBE/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 1124 1083 150.07      
2 A1 373 360 2.66      
3 A1 216 208 0.04      
4 E 727 700 246.86      
4 E 727 700 246.87      
5 E 293 282 0.03      
5 E 293 282 0.03      
6 E 147 142 0.00      
6 E 147 142 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 2022.9 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 1948.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HSEh1PBE/3-21G
ABC
0.03428 0.03428 0.02008

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.437
F2 0.000 0.000 1.806
Br3 0.000 1.883 -0.180
Br4 1.631 -0.942 -0.180
Br5 -1.631 -0.942 -0.180

Atom - Atom Distances (Å)
  C1 F2 Br3 Br4 Br5
C11.36861.98181.98181.9818
F21.36862.73672.73672.7367
Br31.98182.73673.26203.2620
Br41.98182.73673.26203.2620
Br51.98182.73673.26203.2620

picture of fluorotribromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 108.141 F2 C1 Br4 108.141
F2 C1 Br5 108.141 Br3 C1 Br4 110.768
Br3 C1 Br5 110.768 Br4 C1 Br5 110.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.395      
2 F -0.220      
3 Br 0.205      
4 Br 0.205      
5 Br 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.649 0.649
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -63.074 0.000 0.000
y 0.000 -63.074 0.000
z 0.000 0.000 -66.191
Traceless
 xyz
x 1.558 0.000 0.000
y 0.000 1.558 0.000
z 0.000 0.000 -3.117
Polar
3z2-r2-6.234
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.558 0.000 0.000
y 0.000 8.557 0.000
z 0.000 0.000 3.712


<r2> (average value of r2) Å2
<r2> 446.351
(<r2>)1/2 21.127